Updates the metadata cache for the specified objects.

Updates metadata for the specified object. If no value already exists for the specified object ID and metadata key, the metadata will be added.

Updates metadata by meta ID.

Retrieves the queue for lazy-loading metadata.

Fires immediately before meta of a specific type is added.

Short-circuits adding metadata of a specific type.

Fires immediately after meta of a specific type is added.

Filters the default metadata value for a specified meta key and object.

Fires immediately before deleting metadata of a specific type.

Short-circuits deleting metadata of a specific type.